Earplug



FIG. 1 is a top perspective view of an earplug showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof;

FIG. 6 is a right side view thereof;

FIG. 7 is a top view thereof; and,

FIG. 8 is a bottom view thereof.

FIG. 9 is a bottom perspective view thereof;

FIG. 10 is a front view thereof; and,

FIG. 11 is a bottom view thereof; and,

FIG. 12 is a perspective view thereof in an alternate position.

The broken lines represent environmental structure or portions of the earplug and do not form a portion of the claimed design. 

CLAIM The ornamental design for an earplug, as shown and described. 